Cino's Colnago Extreme Power + Campag EPS Project **Finished with Pics**

On here, and all over the internet, you will find loads of info on how to how to hide the Shimano Di2 junction box , for the clean look . The Campag DTI unit straps on the stem , just like the Di2 unit , but I've not come across anyone successfully hiding it . There's good reason for this , the only place you could hide it ,is inside the stem, which would mean cutting out a gap for the wires , which on modern lightweight stems is, well , just not worth the risk. The other reason is , you need to be able to see the LED on the unit , it tells you if the battery's charged , and is also needed for you (or a tech) to set the system up and for diagnostics.
Over the last year or so ,I've had a number of Trek's come through the workshop with rather intriguing Bontrager stems , they have gaping mouths above and below the bars

Apparently , the gaps are designed for various light and gizmo brackets to fit into , but I'm thinking , plenty of room for the DTI wires on the lower gap , and maybe the LED will be just visible through the upper gap. Fortunately , Bontrager do a decent range of stems with this feature (awkwardly called 'blendr') and I was able to pick up a -17 degree one I need.
This turned out to be a really easy hack , firstly pack some bubblewrap into the stem , then push the unit in wires first LED up , bend the wires back underneath the unit and back out through the lower gap . Next pack some double sided sticky pads under the unit , to keep it in place and also to raise it so that it's high enough for the LED to be visible through the top gap , probably make sense when you see the pics;


LED on

Wires exiting

There you go DTI box completely hidden !! , shot also shows DTI wire and rear brake cable attached together with heat shrink , and the cable entering the frame.
I'm proper stoked with this , it's very satisfying when an idea actually works!